3968857 has 8 divisors (see below), whose sum is σ = 4238784. Its totient is φ = 3707088.

The previous prime is 3968827. The next prime is 3968863. The reversal of 3968857 is 7588693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3968857 - 2⁷ = 3968729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3968807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018 + ... + 2995.

It is an arithmetic number, because the mean of its divisors is an integer number (529848).

Almost surely, 2^3968857 is an apocalyptic number.

It is an amenable number.

3968857 is a deficient number, since it is larger than the sum of its proper divisors (269927).

3968857 is a wasteful number, since it uses less digits than its factorization.

3968857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079.

The product of its digits is 362880, while the sum is 46.

The square root of 3968857 is about 1992.1990362411. The cubic root of 3968857 is about 158.3270611243.

The spelling of 3968857 in words is "three million, nine hundred sixty-eight thousand, eight hundred fifty-seven".